12000110121 has 16 divisors (see below), whose sum is σ = 17825617920. Its totient is φ = 7978618800.

The previous prime is 12000110113. The next prime is 12000110141. The reversal of 12000110121 is 12101100021.

It is a happy number.

It is not a de Polignac number, because 12000110121 - 2³ = 12000110113 is a prime.

It is a super-2 number, since 2×12000110121² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12000110141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585705 + ... + 605846.

It is an arithmetic number, because the mean of its divisors is an integer number (1114101120).

Almost surely, 2^12000110121 is an apocalyptic number.

It is an amenable number.

12000110121 is a deficient number, since it is larger than the sum of its proper divisors (5825507799).

12000110121 is a wasteful number, since it uses less digits than its factorization.

12000110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191933 (or 1191927 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12000110121 its reverse (12101100021), we get a palindrome (24101210142).

The spelling of 12000110121 in words is "twelve billion, one hundred ten thousand, one hundred twenty-one".